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(No Model.) 3 Sheets-Sheet 2.

`W. M. BARRY. MULTIPLE SAWING MACHINE.

No. 579,463. Patented Mar. 23, 1897.

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(Nu Model.)

W. IVI. BARRY. MULTIPLE SAWING MACHINE.

3 Sheets-Sheet 3.

Patented Mar. 23, 1897.

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VILLIAM M. BARRY, OF MEMPHIS, TENNESSEE, ASSIGNOR TO BEARD, VILSON daCO., OF SAME PLACE.

MULTIPLE SAWING-EVIACHINE.

SPECIFICATION forming part of Letters Patent No. 579,463, dated March23, 1897.. Application tied April 3,1896. semina. 586,075. (Namodei.)

To all w/tom t may concer/ft.-

Beit known that I, WILLIAM M. BARRY, a citizen of the United States,residing at Memphis, in the county7 of Shelby and State of Tennessee,have invented a new and useful Multiple SawingMachine, of which thefollowing is a specification.

This invention relates to multiple sawingmachines; and the generalobject in view is to provide a machine having a number of saws and acorresponding number of independent feed-rolls, together with theoperating mechanism therefor, whereby the stock maybe fed laterally andwith equal speed throughout to the saws and be thereby cut up intopredetermined lengths.

The invention also has for its object to provide means whereby the sawsmay be adjusted longitudinally of their driving shaft and means alsowhereby the feeding mechanism for each saw may be independentlyadjusted, the different feeding mechanisms being operatively connectedto the same driving-shaft and operated synchronously.

Other objects and advantages of the invention will appear in the courseof the subjoined description.

The invention consistsin an improved multiple sawing machine embodyingcertain novel features and details of construction and arrangement ofparts hereinafter fully described, illustrated in the drawings, andincorporated in the claims hereto appended.

In the accompanying drawings, Figure l is a side elevation of theimproved machine. Fig. 2 is a cross-section of the same, taken justinside of the head-frame. Fig. 3 is an enlarged plan view of a portionof the machine, showing the feeding mechanism. Fig. 4 is a transversesection through the machine, taken also through the feeding mechanism.Fig. 5 is a detail horizontal section through the feeding mechanism inline with the driving-shaft of such mechanism. Fig. 6 is a detaillongitudinal section through one of the saw-heads and the sawarm. Fig. 7isadetail longitudinal section showing the manner in which the long andshort sections of the sawshaft are coupled and the manner of mountingthe initial saw. Fig. 8 is a detail horizontal section on the line 8 8of Fig. 4. Fig.

9 is an enlarged elevation of the elbow-links of the feeding mechanism.Fig. lOis a similar view of the cross-head connecting the elbowliulrs inpairs.

Similar numerals of reference designate corresponding parts in theseveral figures of the drawings.

Referring to the accompanying drawings, l designates the frame of themachine, which may be of any suitable construction, and upon which theoperative parts of the Inachine are mounted.

2 represents a pair of metal slides or tracks which extendlongitudinally of the frame and are supported thereon. These tracks arespaced apart, as shown in Fig. 4, and are arranged exactly parallel, andeach comprises a rack-rail 3, arranged near its inner edge and havingits upper surface toothed for a purpose that will hereinafter appear.Each track is provided near its outer edge with a vertical longitudinalflange 4, which is provided at numerous intervals with threaded horizontal open ings, through which pass binding-screws 5. The spaces orgrooves formed between the rack-rails 3 and flanges 4 are adapted toreceive slidingly the depending feet 6 of a number of saw-arms 7.

Any number of saw-arms 7 may be employed, and each extends transverselyof the machine, as shown in Figs. 3 and 4, and is provided at itsreceiving end with an extension 8, upon which the board is placedpreparatory to sawing. The saw-arms 7 are arranged at distances apartcorresponding to the lengths of material to be cut, and they allcontribute to form the sawtable. At a medial point between the tracks 2each saw-arm is hollowed out beneath or made substantially in the formof an inverted U in cross-section, and at such point the arm is providedat each side with half-journal boxes 9 for the sawhead, complementaryhalfboxes l0 being detachably connected to the integral half-boxes 9 forcompleting the bearings. The saw-head (shown at l1) is in the form of asleeve, which is mounted to slide longitudinally upon the saw-shaft l2.The saw-shaft l2 is provided with diametrically opposite longitudinalgrooves 13 and the saw-head is provided with inwardlyprojecting feathers14, which rest IOO loosely in said grooves, thus enabling the sawhead tobe adjusted longitudinally of the shaft, while the head is caused torevolve therewith. The sawehead has an annular flange 15, forming ashoulder against which the circular saw 16 is seated, and is alsothreaded to receive a clamping-nut 17 for the saw, all as clearlyillustrated in Eig. 6. The saw-arm '7 is provided in its upper wall witha slot 1S, through which the saw operates, and is provided at eitherside with oil-pockets 19, communicating with the sawhead and adapted toreceive and contain a quantity of lubricant.

Each of the sawarms 7 is provided at front and rear withlaterally-projecting bearingbrackets 20, in which is journaled atransverse shaft 21, extending parallel to the arm 7 and having neareach end a pinion 22, said pinions being fast on the shaft 21 andmeshing with the teeth of the rack-rails 3. One end of the shaft 21 isextended and provided with a transverse pin 23, enabling the shaft to beturned by means of a crank-handle 24, having a slotted head 25, which isadapted to embrace such end of the shaft and to engage the projectingends of the pin 23, as shown in Fig. 3. In this manner the shaft 2l maybe turned, causing the pinions 22 to feed along the rack-rails 3,thereby moving the saw-arm and saw-head longitudinally of the saw-shaft.When the desired position is reached, the saw-arm is clamped by means ofthe bindingscrews 5, which are brought to bear at their inner endsagainst gibs 26, embracing the feet 6 of the saw-arm. These gibs aremade in the U shape shown in Fig. 8, so that they will engage and slidewith the feet 6, and their object is to prevent wear on the feet 6 bythe bindingscrews 5. The several features above described with relationto one saw-arm are present in each and all of the saw-arms, and it willalso be noted that the saw arms and heads may be entirely removed fromthe machine, the arms being lifted out of engagement with their tracksand the saw-heads being capable of being moved endwise off the end ofthe saw-shaft.

The saw-shaft 12 is made in two sections, which are coupled together bya screw threaded connection, (shown at 27in Fig. 7,) the larger portion,or that portion having the largest diameter, being formed with athreaded socket, in which the threaded end of the other section isscrewed. When in place, keys 28 are inserted in the grooves 13 of thesaw-shaft, the same fitting corresponding grooves in the end of theother section of the shaft and preventing relative rotation of saidsections and consequent jamming. The initial saw-arm 7 being located sonear one of the bearings 29 of the shaft 12, it is unnecessary toprovide such arm with the boxes 9 and 10, above referred to, and it isalso unnecessary to employ an adjustable saw-head. Therefore as theinitial saw always remains at the same point a stationary flange 30 isprovided and the saw 16 is secured against the same by means of theclamping-nut 3l. By uncoupling the sections of the saw-shaft 12 one ormore of the saws may be readily removed for the purpose of sharpening,and by this construction the number of saws may readily be changed atwill.

32 designates the feed-bridge, which is superposed above the saw-arms 7,said bridge comprising a pair of parallel longitudinal angle-,beams 33,having their vertical portions arranged innermost and opposing eachother, the said beams being braced by means of a pair of trusses 34,arranged over thehorizontal portions of the beams and connected theretoby means of strut-bolts 35. The inner vertical portions of the beams 33form tracks or ways, upon which are mounted a number of sliding frames36, carrying the feed mechanism. The number of these sliding frames isgoverned by the number of saws employed. Each of said frames isconstructed, preferably, as shown in plan in 3 and 5, being formed oftwo L-shaped frames having a tongue-and-groove connection at diagonallyopposite corners and fastened at such points by means of screws or bolts37. Each frame fits snugly between and abuts squarely against the inneradjacent surfaces of the vertical portions of the beams 33 and is alsoprovided at front and rear with overhanging lips 33, which bear againstthe outer surfaces of such portions of the beams and carrybinding-screws 39, by which the frame 36 may be held stationary.

40 designates the feed-shaft,which, like the saw shaft, is provided withlongitudinal grooves arranged diametrically opposite, said shaft havingits bearings in and passing through the side bars of each and all of theframes 36. Vithin each frame 36 is j ournaled a sleeve 4l, provided atits center with a fixed spur-wheel 42, the same meshing with and drivingspur-pinions 43,mounted on short axles 44, carried by the lower arms 45of elbow-shaped links 46. p These links are journaled at their elbows onthe end portions of the sleeve 41 and upon opposite sides of the centralsp urgear 42, and are connected in opposing pairs by the axles 44. Thepinions 43 are formed or secured fast upon sleeves 47, which arejournaled upon the axles 44, the ends of said sleeves being extendedbeyond the sides of'the pinions 43 and having fast thereon feed-rolls48, provided with toothed peripheries, whereby they are adapted toobtain the necessary hold upon the board being cut. By reason of theelbow-links being fulcrumed on the feed-shaft 40 the spur-pinions 43will always remain in gear with the driving spur-gear 42 as the linksswing. The upper arms of the links 46 are connected in opposing pairs bymeans of cross-heads 49, one of which is shown in detail in Fig. 10,said cross-heads having their ends reduced to form journals 50, whichenter eye-bearings in the links. Each of said cross-heads 49 also has acentral opening 51, through which is re- IOO IIO

ceived the inner end of a tension-rod 52, said rod passing through aperforated vertical ear or extension 53 on the frame 36 and havingdisposed around its projecting end a spiral tension-spring 54, the saidrod also having a nut 55 foradjustingthetension of the spring. Thesprings 54 exert their tension upon the elbow-links 46, so as to forcethe feed-rolls 48 into operative engagement with the stock, and at thesame time the said springs will yield for enabling the feed-rolls torise and fall to accommodate any unevenness or inequalities in thestock.

By the construction described it will be seen that whenever the saws areadjusted the feeding mechanism for that saw may be correspondinglyadjusted, the idea being to have the feed-rolls 48 straddle the saw,both at its cutting-point and at its rear edge, so as to exert equalforce on the board upon each side of the saw. It will also be seen thatby making the several gears and feed-rolls of the several feedingmechanisms the same size throughout and driving them all by means of theone shaft 40 the stock must necessarily be fed with equal speed at allpoints throughout its length, thus preventing the board from canting ortwisting and wedging or binding the saws.

The feed-bridge may be adjusted up or down by means of the verticalscrews 56, located one at each corner of the bridge, as shown in Figs. land 2. These screws pass through the angle-beams 33 at their ends andhave a threaded connection therewith, and when. the feedbridge hasattained the desired elevation it is clamped by means of jam-nuts 57.Screws 56 have at their lower ends miter-gears 58, which mesh withcomplementary gears 59 on transverse shafts 60, journaled in themachine-frame at each end thereof, as shown in Fig. l. Both of saidshafts are provided with sprocket-wheels 6l, which are operativelyconnected by a drive-chain 62, and one of the shafts 60 is provided witha hand-wheel or crank 63, by the rotation of which all of the screws 56may be simultaneously operated, thus lifting the feed-brakes equally atall points and correspondingly elevating the several feed mechanismscarried by the bridge.

The saw-shaft is provided with a pulley 64, to which motion iscommunicated directly by a belt 65. The saw-shaft also has a smallerpulley 66, from which a belt 67 extends around a large pulley 68. Theshaft of this pulley has a small pulley 69, from which a belt 70 extendsto a large pulley 7l on a short horizontal shaft at the top of 'themachine, and this shaft has a spur-pinion 72, which meshes with aspur-wheel 7 3, upon the shaft of which is arranged a smallsprocket-wheel 74, from which a chain extends around another largersprocket-wheel 7 5 on the feed shaft. By means of this arrangement ofbelts and pulleys the speed of the feeding mechanism is reduced to thedesired point, the material to be sawed being thus fed at a speedproportionate to that ofthe saws.

The multiple sawing-machine hereinabove described is especially designedfor use in the manufacture of boxes and packing-cases, the said sawbeing capable of making at one cut the sides, top, and bottom of a box,and as the lengths sawed are always equal the completed boxes or caseswill be similar in every respect. It will be apparent, however, that themachine is susceptible of various other uses, which will readily suggestthemselves.` It will be understood that the number of saws may beincreased or diminished at will and that the several saws may beadjusted to any desired distances apart. Owing to the particularconstruction of the feedoperating mechanism the feed-rolls are alldriven synchronously, thereby rendering it impossible for the stock tocant or become twisted between the saws, and thus to bind or stop thesame. By the construction described the saws may be removed from eitherend of the saw shaft for sharpening, dac. Where only one or two sawsbecome dull, the feed-bridge may be elevated by the mechanism describedsufticiently to enable an attendant to sharpen the said saw or sawswithout the necessity of removing the same from the shaft. The inventionis also susceptible of various changes in the form, proportion, andminor details of construction, which may accordingly be resorted towithout departing from the spirit or sacrificing any of the advantagesof this invention.

Having thus described the invention, what is claimed as new is l. In asawing-machine, the combination with the machine-frame, and the sawmounted thereon, of a superposed feed-bridge, the feed rolls and theiroperating mechanism mounted thereon, the screws located at differentpoints and interposed between the machine-frame and the feed-bridge, andmeans for simultaneously operating said screws for `adj usting theheight of the bridge, substantially as described.

2. In a sawing-machine, the combination with the machine-frame, the saw,and the feed-bridge, of a frame having a sliding engagement with thefeed-bridge and having provision whereby it may be clamped at any point,a pair of spaced feed-rolls mounted. in said frame and adapted tostraddle the saw, and means for operating said feed-rolls and allowingthe same to yield, substantially in the manner and for the purposedescribed.

3. In a sawing-machine, the combination with the machine-frame, the saw,and a frame superposed above the machine-frame, of the feed mechanism onsaid superposed frame, comprising two sets of feed-rolls arranged inopposing pairs which straddle the saw at front and rear, the pinions onthe feed-roll shafts, the intermediate actuating-gear meshing with saidpinions, the feed-shaft on which the in- IOO IIO

termediate gear is mounted, and provision A for holding the feed-rollsin yielding engagement with the work, substantially as described.

4. In a sawing-machine, the combination with the saw-table and the shaftof the feed mechanism arranged above the same, of an actuating-gearmounted on said shaft, an elbow-link journaled on the shaft, a feed-rolljournaled in one arm of said link and having a pinion intermeshing withthe actuatinggear, and a tension device connected with the other arm ofthe link, and arranged wholly above the saw-table so as to leave anunobstructed way fer the boards to be fed laterally to the saws,substantially as described.

5. In a sawing-machine, the combination with the saw-table and the shaftof the feed mechanism arranged over said table, of an actuating-gear onsaid shaft, an elbow-link journaled on said shaft, a feed-roll journaledon one arm of said link and operatively engaged by the actuating-gear, asubstantially horizontal tension-rod connected to the other arm of saidlink and passing through the frame of the feed mechanism and arrangedwholly above the saw-table so as to leave the latter unobstructed, andthe tension-spring on said rod, all arranged for joint operation,substantially as described.

6. In a sawing-machine, the combination with the saw-table and the shaftof the feed mechanism arranged over said table, of an actuating-gear onsaid shaft, apair of elbowlinks journaled on the shaft at each side ofsaid gear, a feed-roll mounted on an axle connecting said links, saidfeed-roll being operatively engaged with and rotated by theactuating-gear, the cross-head connecting the remaining arms of saidlinks, and the tensionrod connected to said cross-head, the entire feedmechanism being located wholly above the saw-table so as to allow thelateral feeding of the boards through the saws, substantially asdescribed.

7. In a sawing-machine, the combination with the shaft of the feedmechanism, of an actuating-gear mounted on a sleeve having afeather-and-spline connection with the shaft whereby the said gear maybe adjusted lengthwise of the shaft, a link fulcrumed on said sleeve,the feed-roll journaled on said link and geared to the actuating-gear,and means for holding the feed-roll to its work, all of said mechanismbeing adjustable lengthwise of the shaft, substantially as and for thepurpose described.

8. In a sawing-machine, lthe combination with the machine-frame, thesaw-shaft, and the saws adjustable longitudinally thereof, of anindependent feed mechanism for each saw, the feed mechanism beingadjustable longitudinally of its shaft whereby the proper relation maybe maintained between each saw and its feed mechanism, substantially asdescribed.

9. In a sawing-machine, the combination with the machine-frame, thesaw-shaft, and a series of saws mounted on said shaft and madeindependently adjustable, of the shaft of the feed mechanism, extendingparallel to the saw-shaft, and a series of independent feed mechanismsmounted on said shaft and made independently adjustable thereon, wherebythe saws and the several feeding mechanisms may be adjusted and theproper relation maintained between the saws and their respective feedmechanisms, substantially as described.

lO. In a sawing-machine, the combination with the machine-frame, asliding frame superposed above the machine-frame and having provisionwhereby it may be clamped at any point and the sliding saw arranged tomove with the sliding frame, of spaced feedrolls mounted in said slidingframe and adapted to straddle the saw, and means for operating saidfeed-rolls, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of-two witnesses.

WILLIAM M. BARRY.

Vitnesses:

JOHN H. SIGGERs, THEoDoRE DAL'roN.

